Google is now letting users train Google Now by letting them correct it when it mishears voice commands.
Voice recognition software can be less than accurate (we've all heard about a frustrating episode with Apple's Siri) so users can now correct Google Now's gaffes into passable English, according to CNET. A person merely needs to correct it by saying, "No, I said . . ." and then repeat the part that's incorrect.
For example, when I asked Google Now, "Where is Santa Maria?" it failed to hear "Maria" and instead showed me results for "Where is Santa?"When I then said, "OK, Google" followed by "No, I said 'Santa Maria,'" Google Now was smart enough to relate the correction to the previous query, plug it in to the right spot, and run the revised search.